1. Analysis of Angular Stability of Fractal Artificial Magnetic Conductor Metasurface Using Generalized Boundary Conditions
- Author
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Brandao, Guilherme L. F., Silva, Elson J., Soares, Icaro V., Resende, Ursula C., Universidade Federal de Minas Gerais = Federal University of Minas Gerais [Belo Horizonte, Brazil] (UFMG), Institut d'Électronique et des Technologies du numéRique (IETR), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS)-Nantes Université - pôle Sciences et technologie, Nantes Université (Nantes Univ)-Nantes Université (Nantes Univ), Brazilian agency CAPES, Brazilian agency CNPq, Brazilian agency FAPEMIG, and Brazilian institution Federal University of Minas Gerais (UFMG)
- Subjects
angular stability ,[SPI]Engineering Sciences [physics] ,fractal ,artificial magnetic conductor (AMC) ,metasurfaces ,generalized boundary conditions (GBCs) - Abstract
International audience; In this work, an Artificial Magnetic Conductor (AMC) metasurface composed by a Sierpinski Carpet fractal unit cell is analyzed using the Generalized Boundary Conditions (GBCs). Since the fractal structure cannot be represented using analytical expressions, the detailed GBCs model is presented to analyze angular and polarization stabilities of the obtained metasurface. The angular stability of the fractal geometry is compared with the square loop and Jerusalem Cross geometries, from the stable bandwidth and frequency deviation. Finally, the computational effort and the accuracy of the proposed method is compared to conventional methods through performance parameters, thus validating GBCs as an alternative method to characterize AMCs.
- Published
- 2021